Table 1.
Characteristics of the study participants at baseline.
| Characteristic | Depressive symptoms at waves 7 and 8 | P for trenda | ||
|---|---|---|---|---|
| Persistent (n = 778) | Episodic (n = 1,240) | No (n = 5,624) | ||
| Women (%) | 556 (71.5) | 864 (69.7) | 3,231 (57.5) | <0.001 |
| White (%) | 573 (73.7) | 961 (77.5) | 4,833 (85.9) | <0.001 |
| Age (Year) | 63.0 ± 10.0 | 63.5 ± 9.4 | 65.3 ± 9.2 | <0.001 |
| Body mass index (kg/m2) | 31.1 ± 6.8 | 29.8 ± 5.8 | 29.0 ± 5.4 | <0.001 |
| Hypertension (%) | 440 (56.6) | 626 (50.6) | 2,592 (46.1) | <0.001 |
| Diabetes (%) | 186 (23.9) | 241 (19.5) | 737 (13.1) | <0.001 |
| Cystatin C (mg/L) | 0.97 (0.84–1.11) | 0.94 (0.82–1.11) | 0.93 (0.80–1.07) | 0.006 |
Data are presented as mean ± standard deviation, n (%), or median (quartiles 1–3).
aCalculated by using a linear regression analysis or χ2 test for trend.